Veracode Vulnerability DatabaseVERACODE:23861Privilege Escalation
EPSS
Percentile
10.1%
kernel-rt is vulnerable to privilege escalation. The vulnerability exists as a deficiency was found in the Linux kernel signals implementation. The kill_something_info() function did not check if a process was outside the caller’s namespace before sending the kill signal, making it possible to kill processes in all process ID (PID) namespaces, breaking PID namespace isolation.
References
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d25141a818383b3c3b09f065698c544a7a0ec6e7
lkml.org/lkml/2008/7/23/148
secunia.com/advisories/34981
secunia.com/advisories/35120
secunia.com/advisories/35121
secunia.com/advisories/35343
secunia.com/advisories/35656
wiki.rpath.com/Advisories:rPSA-2009-0084
www.debian.org/security/2009/dsa-1787
www.debian.org/security/2009/dsa-1800
www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28
www.openwall.com/lists/oss-security/2009/04/16/2
www.openwall.com/lists/oss-security/2009/04/17/4
www.openwall.com/lists/oss-security/2009/04/21/1
www.redhat.com/security/updates/classification/#important
www.redhat.com/support/errata/RHSA-2009-1081.html
www.securityfocus.com/archive/1/503610/100/0/threaded
www.ubuntu.com/usn/usn-793-1
access.redhat.com/errata/RHSA-2009:1081
bugzilla.redhat.com/show_bug.cgi?id=496031
exchange.xforce.ibmcloud.com/vulnerabilities/50386
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